title: Di-allelic alloantigenic systems on subsets of T cells.
abstract: Sera obtained from multiparous women and some of other origin contain antibodies which react with antigens on T cell subsets. These antibodies recognize two distinct diallelic systems, one of which is mainly present on T gamma cells while the other is present on T mu cells. The sera that reacted with the T gamma cells formed a pattern consistent with that of a diallelic system which we have called TCA system with alleles TCA 1 and TCA 2; the sera which reacted with the T mu cells formed a pattern consistent with another diallelic system, independent from TCA, which we have designated the TCB system, with alleles TCB 1 and TCB 2.
mesh_terms: D000483:Alleles; D004351:Drug Resistance; D005260:Female; D006680:HLA Antigens; D006801:Humans; D007142:Immunoglobulin gamma-Chains / Q000235:genetics; D007148:Immunoglobulin mu-Chains / Q000235:genetics; D007519:Isoantigens / Q000235:genetics*; D011247:Pregnancy; D013601:T-Lymphocytes / Q000187:drug effects / Q000276:immunology*; D013806:Theophylline / Q000494:pharmacology
chemical_list: D006680:HLA Antigens; D007142:Immunoglobulin gamma-Chains; D007148:Immunoglobulin mu-Chains; D007519:Isoantigens; D013806:Theophylline